I think I am doing something like that at the moment, I wrote a whole lot of ideas - just having a name and saved it as unpublished posts. I look at the list, select something and try writing about it - if it starts feeling like it is not working out I stop, save it and have it as an unfinished work for when I can have a better idea what to do with it.

It has been helping me with writing a topic and choosing one I enjoy writing about - I then publish what I find acceptable and then it works as a proof that I am doing something and can be adjusted at a later time, have works in progress that didn't work out how I planned and then a whole list of ideas I can try work on so I have so I also have something to look at and work on.